PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6-8BResistor,current Regulating

Amperite Co Inc · NSN 5905-00-202-0421 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-202-0421 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-202-0421. Primary manufacturer part number: 6-8B.
Features
  • Resistor,current Regulating — FSC 5905
  • Base Type: 4 PIN
  • Current Type: DC
  • Envelope Type Per Mil-E-1: T9 (1-4) PER SPEC MIL-E-1B
  • Resistive Element Pin Connection: 1 AND 4
  • Current Range in Amps: +0.580 TO 0.620
  • Threshold Voltage in Volts: 9.0
  • 3 verified cross-references
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Resistor,current Regulating, cataloged under National Stock Number 5905-00-202-0421, is classified within Federal Supply Class 5905 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Amperite Co Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-202-0421
Primary Part Number6-8B
Item NameResistor,current Regulating
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerAmperite Co Inc
StatusACTIVE
Base Type4 PIN
Current TypeDC
Envelope Type Per Mil-E-1T9 (1-4) PER SPEC MIL-E-1B
Resistive Element Pin Connection1 AND 4
Current Range in Amps+0.580 TO 0.620
Threshold Voltage in Volts9.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6240-00-019-091268B INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5120-00-221-70635120-00-221-7063 INTERCHANGEABLE
Scriber,machinist's
General Services Administration Federal Supply Service
6685-00-248-6881164419 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
3030-00-529-0467 INTERCHANGEABLE
Belt,v
Cross-Reference Index
Part NumberManufacturer
K844958-1SUB5 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
68B Amperite Co Inc (USA)
6-8B PRIMARY Amperite Co Inc (USA)
Related Parts
6240-00-019-0912INTERCHANGEABLE
LAMP,INCANDESCENT
68B
5120-00-221-7063INTERCHANGEABLE
SCRIBER,MACHINIST'S
5120-00-221-7063
6685-00-248-6881INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164419
3030-00-529-0467INTERCHANGEABLE
BELT,V

Frequently Asked Questions

What is NSN 5905-00-202-0421?

NSN 5905-00-202-0421 is a Resistor,current Regulating, manufactured by Amperite Co Inc, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-202-0421?

NSN 5905-00-202-0421 has 3 cross-referenced part numbers: K844958-1SUB5 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 68B (Amperite Co Inc), 6-8B (Amperite Co Inc).

What NSN replaces 5905-00-202-0421?

There are 4 known substitutes for 5905-00-202-0421: 6240-00-019-0912, 5120-00-221-7063, 6685-00-248-6881 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6-8B?

Key specifications for 6-8B: Base Type: 4 PIN; Current Type: DC; Envelope Type Per Mil-E-1: T9 (1-4) PER SPEC MIL-E-1B; Resistive Element Pin Connection: 1 AND 4. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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